Latch mechanism.



IIJAITENTED' MAY 21, 1901.

H. G. YOIGHT. LATCH MECHANISM. APPLIOATIOI. nus-n unlza. 1901.

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No. 854.00 PATENTBD MAY 21 1907,

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' LATCH MECHANISM. APPLIU'ATI ON FILED (U1434907- .2 SHEETS-SHEET 2.'

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I-IENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LATCH MECHANISM.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed January 23, 1907. Serial No. 353,591.

T 0 all 11/77/0772, it may concern.-

Be it known that I, HENRY G. VOIGI-IT, a citizen of the United States, residing at New Britain, county of Hartford, Connecticut, have invented certain new and useful Improvements in Latch Mechanism, of which the following is a full, clear, and exact description.

My invention relates to improvements in latch mechanism, the object being to provide a lock which is particularly useful in connec tion with an outside door, such as a store door, wherein the use of a powerful handle is desirable.

In the accompanying drawing, Figure 1 is a front elevation of the look as it appears when applied to a door. Fig. 2 is a horizontal section, partly in elevation. Fig. 3 is an elevation oi the inner side of one side plate of the lock and its associated mechanism.

1 represents a handle at the inside of the door, 2 a' handle at the outside of the door. These handles are suitably connected to the door at their upper and lower ends, and through the medium of plates 3-4 respectively. .These plates 3-4 may be secured to the opposite sides of a door 5 in any well known manner.

6 is the front plate through which projects the latch bolt 7.

8 is a dead-bolt which may be provided if desired, the same being operable on the inside in any well known manner, for example, by means of a thumb-turn 9, and from the outside by means of a key 10.

11 is an inwardly projecting arm from the upper part of handle 2, the same passing through a horizontal slot or passage in the side plate 4 and in the door 5 and arranged to have a laterally retractive movement relatively to the edge of the door. This arm 11 is suitably connected with the latch slide 12, which in turn is suitably connected to the latch bolt and is housed within plate 3.

14 is an arm projecting from the inner handle 1 through the side plate 3 and making suitable engagement with the slide 12. This arm 14 also has a similar retractive move ment.

In the particular form shown, 15-16 are movable parts of the handles 1 and 2 respectively, by which the arms 1411 are moved respectively. In the arrangement shown, the latch slide may be retracted independently by either of the members 15-16. These members in the form shown are conveniently placed so as to be engaged by the thumb, while the fingers grasp the body of the handle. A portion of the handle or a portion of the arms 11-44 respectively, may overstand and cover the slots in the plates through which said arms pass, so as to render said slots invisible.

What I claim is: a. 1. In combinationdioppositely arranged plates, a latch bolt and a latch slide, both carried by one of said plates and at one side of the door, a handle carried by each of said,

plates, an arm pivoted to the upper portion of each handle, projecting inwardly through its respective plate in operative connection with the latch slide to laterally retract the same.

' 2. In combination, oppositely arranged plates, a latch bolt and a latch slide, both carried by one of said plates and at one side of the door, a handle carried by each of said plates, an arm pivoted to the upper portion of each handle, projecting inwardly through its respective plate in operative connection with the latch, and laterally retractable, finger pieces carried by said arms, movable independently of said handles for operating said projecting slide operating arms.

3. In combination, oppositely arranged plates, a latch bolt and a latch slide, both carried by one of said plates and at one side of the door, a handle carried by each of said plates, an arm pivoted to the upper portion of each handle, projecting inwardly through its respective plate in operative connection with the latch, and being laterally retractable, finger pieces on said arms pivotally supported by said handles near the upper ends thereof, and movable independently for operating said. inwardly projecting slide operating arms.

HENRY e. voIeI-IT.

Witnesses:

M. S. WIARD, CnAs. E. RUssELL. 

